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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .06583789735876569 | 3.406e-07 | |
| a | 2.563056029308243 | 3.6963e-08 | au |
| q | 2.394309809525881 | 8.5157e-07 | au |
| i | 14.55509777469108 | 9.3307e-06 | deg |
| node | 6.011019889574476 | 2.0634e-05 | deg |
| peri | 176.2178972354162 | 5.0245e-05 | deg |
| M | 174.1745518920748 | 6.4057e-05 | deg |
| tp | 2458475.366819143066
(2018-Dec-22.86681914) | 0.00025841 | TDB |
| period | 1498.772020784365
4.10 | 3.2422e-05
8.877e-08 | d
yr |
| n | .2401966376524685 | 5.196e-09 | deg/d |
| Q | 2.731802249090604 | 3.9397e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
17.13 |
|
n/a |
E2021B25 |
|
|
| 470673 (2008 SM209) Discovered 2008-Sep-28 by Astronomical Research Observatory at Charleston |
| Reference: | Last Updated: 2016-08-22 |
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